N64 on digital TV

I'm tying to use my old N64 with an 8 year old Samsung LCD TV. Upon plugging in the RCA video cable from the N64, the picture is incredibly pixelated.

I've read some things about how the n64 outputs a low quality video and the tvs are basically blowing up the low res images. And people get up converters and such.

Short of getting an old CRT tv, is there anything else I can try? My TV also has HDMI in, VGA in and Antenna in. I tried an antenna / coaxial adapter for the N64 and the picture was only slightly better, but with added snow / distortion

The video solutions for the Nintendo 64 are covered pretty well with comparison video captured in this Youtube video RGB205 Getting the Best Picture from your Nintendo 64 - MY LIFE IN GAMING

I use an S-Video cable (same cable for SNES, N64, GC) make sure it has a Ferrite Bead it really does help and is cheap (if not included). Less than $10 total and it looks good. Some games configured the internal video settings in a blurry or pixelated way so not much you can do with them.

There is an HDMI modification available that gets amazing reviews, but is expensive and there is currently a waiting list.